Yes, but no.

First, Trump would have to be charged, and convicted, of treason, insurrection, etc., in order for that to apply. There’s been no legal determination of that yet, and it’s unlikely to come prior to the election.

Second, this presumes that Congress does what it’s supposed to do, and refuses to swear in a president that has elected after committing treason, etc. If congress simply ignores section 3 of the 14A, then there’s not really much of a remedy available to a typical citizen.